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<?php // $Id$
// Edit and save a new post to a discussion
require_once("../../config.php");
require_once("lib.php");
if (isguest()) {
error(get_string("noguestpost", "forum"), $_SERVER["HTTP_REFERER"]);
}
require_login(0, false); // Script is useless unless they're logged in
if ($post = data_submitted()) {
if (empty($post->course)) {
error('No course was defined!');
}
if (!$course = get_record('course', 'id', $post->course)) {
error('Could not find specified course!');
}
if (!empty($course->lang)) { // Override current language
$CFG->courselang = $course->lang;
}
if (empty($SESSION->fromurl)) {
$errordestination = "$CFG->wwwroot/mod/forum/view.php?f=$post->forum";
} else {
$errordestination = $SESSION->fromurl;
}
$post->subject = strip_tags($post->subject, '<lang>'); // Strip all tags except lang
//$post->message = clean_text($post->message, $post->format); // Clean up any bad tags
$post->attachment = isset($_FILES['attachment']) ? $_FILES['attachment'] : NULL;
if (!$cm = get_coursemodule_from_instance("forum", $post->forum, $course->id)) { // For the logs
$cm->id = 0;
}
if (!$post->subject or !$post->message) {
$post->error = get_string("emptymessage", "forum");
} else if ($post->edit) { // Updating a post
$post->id = $post->edit;
$message = '';
if (forum_update_post($post,$message)) {
add_to_log($course->id, "forum", "update post",
"discuss.php?d=$post->discussion&amp;parent=$post->id", "$post->id", $cm->id);
$timemessage = 2;
if (!empty($message)) { // if we're printing stuff about the file upload
$timemessage = 4;
}
$message .= '<br />'.get_string("postupdated", "forum");
if ($subscribemessage = forum_post_subscription($post)) {
$timemessage = 4;
}
redirect(forum_go_back_to("discuss.php?d=$post->discussion#$post->id"), $message.$subscribemessage, $timemessage);
} else {
error(get_string("couldnotupdate", "forum"), $errordestination);
}
exit;
} else if ($post->discussion) { // Adding a new post to an existing discussion
$message = '';
if ($post->id = forum_add_new_post($post,$message)) {
add_to_log($course->id, "forum", "add post",
"discuss.php?d=$post->discussion&amp;parent=$post->id", "$post->id", $cm->id);
$timemessage = 2;
if (!empty($message)) { // if we're printing stuff about the file upload
$timemessage = 4;
}
$message .= '<br />'.get_string("postadded", "forum", format_time($CFG->maxeditingtime));
if ($subscribemessage = forum_post_subscription($post)) {
$timemessage = 4;
}
redirect(forum_go_back_to("discuss.php?d=$post->discussion#$post->id"), $message.$subscribemessage, $timemessage);
} else {
error(get_string("couldnotadd", "forum"), $errordestination);
}
exit;
} else { // Adding a new discussion
$discussion = $post;
$discussion->name = $post->subject;
$discussion->intro = $post->message;
$message = '';
if ($discussion->id = forum_add_discussion($discussion,$message)) {
add_to_log($course->id, "forum", "add discussion",
"discuss.php?d=$discussion->id", "$discussion->id", $cm->id);
$timemessage = 2;
if (!empty($message)) { // if we're printing stuff about the file upload
$timemessage = 4;
}
$message .= '<br />'.get_string("postadded", "forum", format_time($CFG->maxeditingtime));
if ($subscribemessage = forum_post_subscription($discussion)) {
$timemessage = 4;
}
redirect(forum_go_back_to("view.php?f=$post->forum"), $message.$subscribemessage, $timemessage);
} else {
error(get_string("couldnotadd", "forum"), $errordestination);
}
exit;
}
}
if ($usehtmleditor = can_use_richtext_editor()) {
$defaultformat = FORMAT_HTML;
} else {
$defaultformat = FORMAT_MOODLE;
}
$parent=NULL; // Initialise some things
if (isset($post->error)) { // User is re-editing a failed posting
// Set up all the required objects again, and reuse the same $post
if (! $forum = get_record("forum", "id", $post->forum)) {
error("The forum number was incorrect ($post->forum)");
}
if (! $course = get_record("course", "id", $forum->course)) {
error("The course number was incorrect ($forum->course)");
}
if (!empty($post->parent)) {
if (! $parent = forum_get_post_full($post->parent)) {
error("Parent post ID was incorrect ($post->parent)");
}
}
if (!empty($post->discussion)) {
if (! $discussion = get_record("forum_discussions", "id", $post->discussion)) {
error("This post is not part of a discussion! ($post->discussion)");
}
}
} else if (isset($forum)) { // User is starting a new discussion in a forum
$SESSION->fromurl = $_SERVER["HTTP_REFERER"];
if (! $forum = get_record("forum", "id", $forum)) {
error("The forum number was incorrect ($forum)");
}
if (! $course = get_record("course", "id", $forum->course)) {
error("The course number was incorrect ($forum->course)");
}
if (! forum_user_can_post_discussion($forum)) {
error("Sorry, but you can not post a new discussion in this forum.");
}
if ($cm = get_coursemodule_from_instance("forum", $forum->id, $course->id)) {
if (!$cm->visible and !isteacher($course->id)) {
error(get_string("activityiscurrentlyhidden"));
}
}
// Load up the $post variable.
$post->course = $course->id;
$post->forum = $forum->id;
$post->discussion = 0; // ie discussion # not defined yet
$post->parent = 0;
$post->subject = "";
$post->userid = $USER->id;
$post->message = "";
$post->format = $defaultformat;
$post->groupid = get_current_group($course->id);
if (isteacheredit($course->id) and $post->groupid == 0) {
$post->groupid = -1;
}
forum_set_return();
} else if (isset($reply)) { // User is writing a new reply
if (! $parent = forum_get_post_full($reply)) {
error("Parent post ID was incorrect");
}
if (! $discussion = get_record("forum_discussions", "id", $parent->discussion)) {
error("This post is not part of a discussion!");
}
if (! $forum = get_record("forum", "id", $discussion->forum)) {
error("The forum number was incorrect ($discussion->forum)");
}
if (! $course = get_record("course", "id", $discussion->course)) {
error("The course number was incorrect ($discussion->course)");
}
if (! forum_user_can_post($forum)) {
error("Sorry, but you can not post in this forum.");
}
if ($cm = get_coursemodule_from_instance("forum", $forum->id, $course->id)) {
if (groupmode($course, $cm) and !isteacheredit($course->id)) { // Make sure user can post here
if (mygroupid($course->id) != $discussion->groupid) {
error("Sorry, but you can not post in this discussion.");
}
}
if (!$cm->visible and !isteacher($course->id)) {
error(get_string("activityiscurrentlyhidden"));
}
}
// Load up the $post variable.
$post->course = $course->id;
$post->forum = $forum->id;
$post->discussion = $parent->discussion;
$post->parent = $parent->id;
$post->subject = $parent->subject;
$post->userid = $USER->id;
$post->message = "";
$post->format = $defaultformat;
$strre = get_string('re', 'forum');
if (!(substr($post->subject, 0, strlen($strre)) == $strre)) {
$post->subject = $strre.' '.$post->subject;
}
unset($SESSION->fromdiscussion);
} else if (isset($edit)) { // User is editing their own post
$adminedit = (isadmin() and !empty($CFG->admineditalways));
if (! $post = forum_get_post_full($edit)) {
error("Post ID was incorrect");
}
if (($post->userid <> $USER->id) and !$adminedit) {
error("You can't edit other people's posts!");
}
if (((time() - $post->created) > $CFG->maxeditingtime) and !$adminedit) {
error( get_string("maxtimehaspassed", "forum", format_time($CFG->maxeditingtime)) );
}
if ($post->parent) {
if (! $parent = forum_get_post_full($post->parent)) {
error("Parent post ID was incorrect ($post->parent)");
}
}
if (! $discussion = get_record("forum_discussions", "id", $post->discussion)) {
error("This post is not part of a discussion! ($reply)");
}
if (! $forum = get_record("forum", "id", $discussion->forum)) {
error("The forum number was incorrect ($discussion->forum)");
}
if (! $course = get_record("course", "id", $discussion->course)) {
error("The course number was incorrect ($discussion->course)");
}
// Load up the $post variable.
$post->edit = $edit;
$post->course = $course->id;
$post->forum = $forum->id;
unset($SESSION->fromdiscussion);
} else if (isset($delete)) { // User is deleting a post
if (! $post = forum_get_post_full($delete)) {
error("Post ID was incorrect");
}
if (! $discussion = get_record("forum_discussions", "id", $post->discussion)) {
error("This post is not part of a discussion!");
}
if (! $forum = get_record("forum", "id", $discussion->forum)) {
error("The forum number was incorrect ($discussion->forum)");
}
if (($post->userid <> $USER->id) and !isteacher($forum->course)) {
error("You can't delete other people's posts!");
}
if (!empty($forum->course)) {
if ($course = get_record('course', 'id', $forum->course)) {
if (!empty($course->lang)) {
$CFG->courselang = $course->lang;
}
}
}
if (isset($confirm)) { // User has confirmed the delete
if ($post->totalscore) {
notice(get_string("couldnotdeleteratings", "forum"),
forum_go_back_to("discuss.php?d=$post->discussion"));
} else if (record_exists("forum_posts", "parent", $delete)) {
error(get_string("couldnotdeletereplies", "forum"),
forum_go_back_to("discuss.php?id=$post->discussion"));
} else {
if (!$cm = get_coursemodule_from_instance("forum", $forum->id, $forum->course)) { // For the logs
$cm->id = 0;
}
if (! $post->parent) { // post is a discussion topic as well, so delete discussion
if ($forum->type == "single") {
notice("Sorry, but you are not allowed to delete that discussion!",
forum_go_back_to("discuss.php?d=$post->discussion"));
}
forum_delete_discussion($discussion);
add_to_log($discussion->course, "forum", "delete discussion",
"view.php?id=$cm->id", "$forum->id", $cm->id);
redirect("view.php?f=$discussion->forum",
get_string("deleteddiscussion", "forum"), 1);
} else if (forum_delete_post($post)) {
add_to_log($discussion->course, "forum", "delete post",
"discuss.php?d=$post->discussion", "$post->id", $cm->id);
redirect(forum_go_back_to("discuss.php?d=$post->discussion"),
get_string("deletedpost", "forum"), 1);
} else {
error("An error occurred while deleting record $post->id");
}
}
} else { // User just asked to delete something
forum_set_return();
print_header();
notice_yesno(get_string("deletesure", "forum"),
"post.php?delete=$delete&amp;confirm=$delete",
$_SERVER["HTTP_REFERER"]);
echo "<center><hr />";
forum_print_post($post, $forum->course, $ownpost=false, $reply=false, $link=false);
echo "</center>";
}
print_footer($course);
die;
} else if (isset($prune)) { // Teacher is pruning
if (! $post = forum_get_post_full($prune)) {
error("Post ID was incorrect");
}
if (! $discussion = get_record("forum_discussions", "id", $post->discussion)) {
error("This post is not part of a discussion!");
}
if (! $forum = get_record("forum", "id", $discussion->forum)) {
error("The forum number was incorrect ($discussion->forum)");
}
if (!isteacher($forum->course)) {
error("You can't split discussions!");
}
if (!$post->parent) {
error('This is already the first post in the discussion');
}
if (isset($_REQUEST['name'])) { // User has confirmed the prune
$newdiscussion->course = $discussion->course;
$newdiscussion->forum = $discussion->forum;
$newdiscussion->name = $name;
$newdiscussion->firstpost = $post->id;
$newdiscussion->userid = $discussion->userid;
$newdiscussion->groupid = $discussion->groupid;
$newdiscussion->assessed = $discussion->assessed;
$newdiscussion->usermodified = $post->userid;
if (!$newid = insert_record('forum_discussions', $newdiscussion)) {
error('Could not create new discussion');
}
$newpost->id = $post->id;
$newpost->parent = 0;
$newpost->subject = $name;
if (!update_record("forum_posts", $newpost)) {
error('Could not update the original post');
}
forum_change_discussionid($post->id, $newid);
// set timemodified to time of last post in each discussion
$lastpost = get_record_sql("SELECT MAX(modified) AS time
FROM {$CFG->prefix}forum_posts
WHERE discussion = '$discussion->id'");
set_field('forum_discussions', 'timemodified', $lastpost->time, 'id', $discussion->id);
$lastpost = get_record_sql("SELECT MAX(modified) AS time
FROM {$CFG->prefix}forum_posts
WHERE discussion = '$newid'");
set_field('forum_discussions', 'timemodified', $lastpost->time, 'id', $newid);
if (!$cm = get_coursemodule_from_instance("forum", $forum->id, $forum->course)) { // For the logs
$cm->id = 0;
}
add_to_log($discussion->course, "forum", "prune post",
"discuss.php?d=$newid", "$post->id", $cm->id);
redirect(forum_go_back_to("discuss.php?d=$newid"), get_string("prunedpost", "forum"), 1);
} else { // User just asked to prune something
$course = get_record('course', 'id', $forum->course);
$strforums = get_string("modulenameplural", "forum");
print_header_simple("$discussion->name: $post->subject", "",
"<a href=\"../forum/index.php?id=$course->id\">$strforums</a> ->
<a href=\"view.php?f=$forum->id\">$forum->name</a> ->
<a href=\"discuss.php?d=$discussion->id\">$post->subject</a> -> ".
get_string("prune", "forum"), '', "", true, "", navmenu($course, $cm));
print_heading(get_string('pruneheading', 'forum'));
echo '<center>';
include('prune.html');
forum_print_post($post, $forum->course, $ownpost=false, $reply=false, $link=false);
echo '</center>';
}
print_footer($course);
die;
} else {
error("No operation specified");
}
// To get here they need to edit a post, and the $post
// variable will be loaded with all the particulars,
// so bring up the form.
// $course, $forum are defined. $discussion is for edit and reply only.
require_login($course->id);
if ($post->discussion) {
if (! $toppost = get_record("forum_posts", "discussion", $post->discussion, "parent", 0)) {
error("Could not find top parent of post $post->id");
}
} else {
$toppost->subject = ($forum->type == "news") ? get_string("addanewtopic", "forum") :
get_string("addanewdiscussion", "forum");
}
if (empty($post->subject)) {
$formstart = "theform.subject";
} else {
$formstart = "";
}
if ($post->parent) {
$navtail = "<a href=\"discuss.php?d=$discussion->id\">$toppost->subject</a> -> ".get_string("editing", "forum");
} else {
$navtail = "$toppost->subject";
}
if (empty($post->edit)) {
$post->edit = "";
}
$strforums = get_string("modulenameplural", "forum");
$navmiddle = "<a href=\"../forum/index.php?id=$course->id\">$strforums</a> -> <a href=\"view.php?f=$forum->id\">$forum->name</a>";
$cm = get_coursemodule_from_instance("forum", $forum->id, $course->id);
if (!empty($discussion) and empty($discussion->name)) {
$discussion->name = $forum->name;
}
if ($course->category) {
print_header("$course->shortname: $discussion->name: $toppost->subject", "$course->fullname",
"<a href=\"../../course/view.php?id=$course->id\">$course->shortname</a> ->
$navmiddle -> $navtail", $formstart, "", true, "", navmenu($course, $cm));
echo '<div id="forum-post" class="forum">'; // forum-post wrapper start
} else {
print_header("$course->shortname: $discussion->name: $toppost->subject", "$course->fullname",
"$navmiddle -> $navtail", "$formstart", "", true, "", navmenu($course, $cm));
echo '<div id="forum-post" class="forum">'; // forum-post wrapper start
}
if (!empty($parent)) {
forum_print_post($parent, $course->id, $ownpost=false, $reply=false, $link=false);
if (empty($post->edit)) {
forum_print_posts_threaded($parent->id, $course, 0, false, false);
}
echo "<center>";
echo "<h2>".get_string("yourreply", "forum").":</h2>";
} else {
echo "<center>";
$forum->intro = trim($forum->intro);
if (!empty($forum->intro)) {
print_simple_box(format_text($forum->intro), 'center');
}
print_heading(get_string('yournewtopic', 'forum'));
}
if (!empty($post->error)) {
notify($post->error);
}
echo "</center>";
print_simple_box_start("center", "", "$THEME->cellheading");
require("post.html");
print_simple_box_end();
if ($usehtmleditor) {
use_html_editor("message");
}
echo '</div>'; // forum-post wrapper end
print_footer($course);
?>
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